/Engine/Source/Runtime/Engine/Classes/Components/PrimitiveComponent.h
Add an impulse to a single rigid body at a specific location. The Strength is taken as a change in angular velocity instead of an impulse (ie. mass will have no effect).
virtual void AddVelocityChangeImpulseAtLocation ( FVector Impulse, FVector Location, [FName](API\Runtime\Core\UObject\FName) BoneName )